diff --git a/src/scheduler.c b/src/scheduler.c
index 4cae4ff4..923d82d2 100644
--- a/src/scheduler.c
+++ b/src/scheduler.c
@@ -1089,6 +1089,37 @@ int xschem(ClientData clientdata, Tcl_Interp *interp, int argc, const char * arg
      my_snprintf(res, S(res), "need_reb_sel_arr=%d\n", xctx->need_reb_sel_arr); Tcl_AppendResult(interp, res, NULL);
      my_snprintf(res, S(res), "undo_type=%d\n", xctx->undo_type); Tcl_AppendResult(interp, res, NULL);
      my_snprintf(res, S(res), "******* end global variables:*******\n"); Tcl_AppendResult(interp, res, NULL);
+     my_snprintf(res, S(res), "******* Compile options:*******\n"); Tcl_AppendResult(interp, res, NULL);
+     #ifdef HAS_DUP2
+     my_snprintf(res, S(res), "HAS_DUP2=%d\n", HAS_DUP2); Tcl_AppendResult(interp, res, NULL); 
+     #endif
+     #ifdef HAS_PIPE
+     my_snprintf(res, S(res), "HAS_PIPE=%d\n", HAS_PIPE); Tcl_AppendResult(interp, res, NULL); 
+     #endif
+     #ifdef HAS_POPEN
+     my_snprintf(res, S(res), "HAS_POPEN=%d\n", HAS_POPEN); Tcl_AppendResult(interp, res, NULL); 
+     #endif
+     #ifdef HAS_XRENDER
+     my_snprintf(res, S(res), "HAS_XRENDER=%d\n", HAS_XRENDER); Tcl_AppendResult(interp, res, NULL); 
+     #endif
+     #ifdef HAS_CAIRO
+     my_snprintf(res, S(res), "HAS_CAIRO=%d\n", HAS_CAIRO); Tcl_AppendResult(interp, res, NULL); 
+     #endif
+     #ifdef HAS_XCB
+     my_snprintf(res, S(res), "HAS_XCB=%d\n", HAS_XCB); Tcl_AppendResult(interp, res, NULL); 
+     #endif
+     #ifdef XSCHEM_SHAREDIR
+     my_snprintf(res, S(res), "XSCHEM_SHAREDIR=%s\n", XSCHEM_SHAREDIR); Tcl_AppendResult(interp, res, NULL); 
+     #endif
+     #ifdef PREFIX
+     my_snprintf(res, S(res), "PREFIX=%s\n", PREFIX); Tcl_AppendResult(interp, res, NULL); 
+     #endif
+     #ifdef USER_CONF_DIR
+     my_snprintf(res, S(res), "USER_CONF_DIR=%s\n", USER_CONF_DIR); Tcl_AppendResult(interp, res, NULL); 
+     #endif
+     #ifdef XSCHEM_LIBRARY_PATH
+     my_snprintf(res, S(res), "XSCHEM_LIBRARY_PATH=%s\n", XSCHEM_LIBRARY_PATH); Tcl_AppendResult(interp, res, NULL); 
+     #endif
     }
    
     else if(!strcmp(argv[1],"go_back"))
diff --git a/src/select.c b/src/select.c
index e3a98f97..a7c070af 100644
--- a/src/select.c
+++ b/src/select.c
@@ -329,7 +329,9 @@ void delete(int to_push_undo)
   if(to_push_undo && xctx->lastsel) xctx->push_undo();
   /* first calculate bbox, because symbol_bbox() needs translate (@#0:net_name) which
    *  needs prepare_netlist_structs which needs a consistent xctx->inst[] data structure */
-  find_inst_to_be_redrawn(1 + 32); /* 32: call prepare_netlist_structs(0) */
+  find_inst_to_be_redrawn(1 + 4 + 32); /* 32: call prepare_netlist_structs(0) if show net names enabled
+                                        *  4: call symbol_bbox() to precisely update bbox to current zoom level
+                                        */
   for(i=0;i<xctx->texts;i++)
   {
     if(xctx->text[i].sel == SELECTED)
@@ -434,8 +436,11 @@ void delete(int to_push_undo)
     propagate_hilights(1, 1, XINSERT_NOREPLACE);
   }
 
-  prepare_netlist_structs(0);
-  find_inst_to_be_redrawn(2 + 4 + 8);
+  find_inst_to_be_redrawn(2 + 8 + 32); /* 32: call prepare_netlist_structs(0)
+                                        *  2: add previously built list
+                                        *  4: call symbol_bbox to precisely update bboxes <<< needed?
+                                        *  8: do not iterate over selection (there is no more selection, deleted)
+                                        */
   find_inst_to_be_redrawn(16); /* clear data */
   xctx->lastsel = 0;
   bbox(SET , 0.0 , 0.0 , 0.0 , 0.0);